According to a lawsuit filed by Margarita Palestino, a dental technician based in Los Angeles, the actor, 49, committed assault, battery, sexual battery and intentional infliction of emotional distress on Sept. 25, when he sought treatment at his dentist's office for an abscess.

In her complaint, filed Friday in the Superior Court of the State of California, Palestino states that she was assisting Drs. George Bogen and Jaime Azdair in an examination room when Sheen ripped off the nitrous oxide mask she had placed on him upon Bogen's orders, and then shouted, "I'm going to f...